Thanks for the nice comments! Some of these will be for gifts and I'll sell some as well.
You can get the hardware at several places like Craft Supplies but the best price that I found is at Woodturningz (Ornament).
The tube that comes with the kit is ~1-1/2" long but it is just a 7 mm tube so you can cut one as long you want. Ornaments 14 and 15 have the kit supplied tube and ornaments 1 through 13 have 2-1/2" long tubes. The blanks ranged from ~3/4" diameter up to ~2" diameter.
If you want to do an upgrade ornament, go over to Bangle Guy (Finials) for some really beautiful finials.